20232117757453 has 12 divisors (see below), whose sum is σ = 23536309607712. Its totient is φ = 17341086519960.

The previous prime is 20232117757381. The next prime is 20232117757477. The reversal of 20232117757453 is 35475771123202.

It is not a de Polignac number, because 20232117757453 - 2⁹ = 20232117756941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20232117757397 and 20232117757406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20232117757483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7495375 + ... + 9830812.

It is an arithmetic number, because the mean of its divisors is an integer number (1961359133976).

Almost surely, 2^{20232117757453} is an apocalyptic number.

It is an amenable number.

20232117757453 is a deficient number, since it is larger than the sum of its proper divisors (3304191850259).

20232117757453 is a wasteful number, since it uses less digits than its factorization.

20232117757453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17350032 (or 17350025 counting only the distinct ones).

The product of its (nonzero) digits is 2469600, while the sum is 49.

The spelling of 20232117757453 in words is "twenty trillion, two hundred thirty-two billion, one hundred seventeen million, seven hundred fifty-seven thousand, four hundred fifty-three".